IMGT reference sequences in FASTA format:

Nucleotide sequences without gaps

The FASTA header contains:
IMGT accession number | gene and allele name | species | functionality | exon name | domain name | domain type | alternative splicing (if it is) | partial (if it is) 
>AJ251433|MH2-DA*01|Oncorhynchus mykiss|F|EX1|splicing a|complete|
ATGAAGACCTCTATGATTGTCCTCATCCTCTGCTGTCAGGTGTATGCAG
>AJ251433|MH2-DA*01|Oncorhynchus mykiss|F|EX2|[D1]|G-ALPHA-DOMAIN|splicing a|complete|
AAGACAAAGTTCTGCATATTGATTTAGCTATTACTGGATGCAGTGATTCAGATGGAGTGG
ATATGTATGGACTGGATGGTGAAGAGTTGTGGTACGCAGACTTCAACAAAAAGGAGGGAG
TGATGGCTCTGCCTCCGTTTGCAGATCAGATGACCTTCCCTGGATTTTATGAACAGGCTG
TAGGTAATCTGGGGATATGCAAAGCAAACCTGGCCGTAGCTATAAAAGCTTCCAAGAACC
CACCAG
>AJ251433|MH2-DA*01|Oncorhynchus mykiss|F|EX3|[D2]|C-LIKE-DOMAIN|splicing a|complete|
AGGCAATAGCCCCTCCTCACAGCAGCATCTACCCCAGGGATGATGTGGAACTGGGGGTGG
AGAACACCCTCATCTGCCACGTCAGTGCGTTCCACCCTGCACCTGTCAGAGTCAGGTGGA
CCAGGAACAATCAGAATGTGACCGAGGGAGTGCGTCTCAGCACCCCCTACCCCAACACTG
ATTTCACCCTCAACCAGTTCTCCAGTCTGACCTTCACCCCAGAGGAGGGAGACATCTATG
GCTGTACTGTGGAGCACAAGGCCCTTACTGAGCCCCTGACACGGATCTGGGAACCTGAGG
TG
>AJ251433|MH2-DA*01|Oncorhynchus mykiss|F|EX4|splicing a|complete|
AGCCAGCCCAGTGTGGCTCCTGCTGTGTTCTGTGGTGTGGGTCTGACTCTGGGGCTGCTG
GGAGTGGCTACCGGAACATTCTTCCCATATAGGTCACTACTTTGGCTAAGAGCCCTTTGC
TCT
>AJ251433|MH2-DA*01|Oncorhynchus mykiss|F|EX1-4|splicing A|complete|
ATGAAGACCTCTATGATTGTCCTCATCCTCTGCTGTCAGGTGTATGCAGAAGACAAAGTT
CTGCATATTGATTTAGCTATTACTGGATGCAGTGATTCAGATGGAGTGGATATGTATGGA
CTGGATGGTGAAGAGTTGTGGTACGCAGACTTCAACAAAAAGGAGGGAGTGATGGCTCTG
CCTCCGTTTGCAGATCAGATGACCTTCCCTGGATTTTATGAACAGGCTGTAGGTAATCTG
GGGATATGCAAAGCAAACCTGGCCGTAGCTATAAAAGCTTCCAAGAACCCACCAGAGGCA
ATAGCCCCTCCTCACAGCAGCATCTACCCCAGGGATGATGTGGAACTGGGGGTGGAGAAC
ACCCTCATCTGCCACGTCAGTGCGTTCCACCCTGCACCTGTCAGAGTCAGGTGGACCAGG
AACAATCAGAATGTGACCGAGGGAGTGCGTCTCAGCACCCCCTACCCCAACACTGATTTC
ACCCTCAACCAGTTCTCCAGTCTGACCTTCACCCCAGAGGAGGGAGACATCTATGGCTGT
ACTGTGGAGCACAAGGCCCTTACTGAGCCCCTGACACGGATCTGGGAACCTGAGGTGAGC
CAGCCCAGTGTGGCTCCTGCTGTGTTCTGTGGTGTGGGTCTGACTCTGGGGCTGCTGGGA
GTGGCTACCGGAACATTCTTCCCATATAGGTCACTACTTTGGCTAAGAGCCCTTTGCTCT